High Peak Density for Enhanced Coating Adhesion

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High Peak Density for Enhanced Coating Adhesion

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The Importance of Peak Density in Coating Applications

The effectiveness of a coating system depends on the profile of the prepared surface. Peak density—the number of peaks per unit area—is a key factor that determines the adhesion strength of a coating. Higher peak density provides greater surface area for coatings to bond, improving adhesion and reducing the likelihood of coating failure.

Slag Abrasives: Challenges with Inconsistent Profiles

Blasting with slag abrasives often results in low peak density due to their irregular particle shapes and inconsistent performance. This creates several challenges:

Inconsistent Surface Profile: Variability in profile leads to uneven coating thickness.
Thicker Primer Coats: More material is required to cover the surface, increasing costs and labor.
Risk of Delamination: Thick primer layers are prone to delamination, particularly in harsh environments.

Peak Density When Using Slag

Peak Density - Slag

Peak Density - Slag 2

GMA Garnet™: Delivering High Peak Density

GMA Garnet™ abrasives provide a consistent surface profile with high peak density, offering significant benefits:

Uniform Adhesion: Consistent profiles allow primers to be applied within specified thickness ranges.
Optimized Coating Performance: Higher peak density improves bonding strength, reducing the risk of coating delamination.
Efficient Material Use: With a smoother, more uniform surface, less coating material is required, saving costs and reducing waste.

These advantages make GMA Garnet™ a preferred choice for industries where long-term coating performance is critical.